Arp, U.
, Hou, K.
, Outlaw, R.
, Sigen, W.
, Zhu, M.
, Quinlan, R.
, , D.
, Kordesch, M.
and Holloway, B.
(2008),
Uniform and enhanced field emission from chromium oxide coated carbon nanosheets, Applied Physics Letters
(Accessed October 8, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Uniform and enhanced field emission from chromium oxide coated carbon nanosheets
Published
Author(s)
, Kun Hou, Ronald Outlaw, Wang Sigen, Mingyao Zhu, Ronald Quinlan, Dennis Manos, Martin Kordesch, Brian Holloway
Abstract
Carbon nanosheets, a two-dimensional carbon nanostructure, are promising electron cathode materials for applications in vacuum microelectronic devices. This letter demonstrates a simple approach to improve the spatial emission uniformity of carbon nanosheets by coating them with a chromium oxide thin film. Photoelectron emission microscopy observations and in situ field emission tests revealed that chromium oxide coated carbon nanosheets not only have spatial uniformity but also have coating thickness dependent field emission properties. For example, a coating thickness of ~1.5 nm gave a substantially greater field emission than as-grown nanosheets or other thickness coatings.Citation
Applied Physics Letters
Pub Type
Journals
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created April 2, 2008, Updated February 19, 2017